96 Mr. R. Newstead on New Coccidx 
@ Adult very elongate, sometimes attenuated and curved in 
front. Rostral filaments very short. Rudimentary antenne with 
two or three spines. Margin in front with a few spiny hairs. 
Pygidium (fig. 6) shghtly produced ; first and second pair of lobes 
very large, chisel-shaped ; third pair nearly obsolete. Plates very 
long, simple and stout; two between the median lobes and two 
between the latter and the second pair ; beyond these are usually 
nine others, arranged in threes. Spines long and slender ; median 
pairs considerably within the margin ; the rest are arranged as shown 
in the figure. Ventral compound spinneréets in five groups ; anterior 
group with 1-7, anterior laterals 15, posterior laterals 15-22 ; in 
one example the anterior group is entirely wanting. 
Scale of the ¢ white, a little convex ; larvai pellicle yellowish. 
d Second stage possessing antenne (fig.7) of six nearly equal joints, 
This character I have not hitherto observed, and it may 
be exceptional ; but as my knowledge of the intermediate 
stages of the  Coccidx is very limited, I cannot now offer 
an opinion. It is certain that the preceding species pos- 
sesses none. 
Hab. ‘ Constantine, 5, xii., 795, mountain westward of 
the town across the valley, at an altitude of about 2500 
feet ; 7, xi., 795, among rocks at the top of the wood on 
M’cid ; 8, xi., 795, among the rocks above the wood on the 
Mansourah, near the quarries below the barracks.” 
On Ampelodesma tenax {Vahl.], Lk. This species is 
allied to Mytilaspis cordylinidis, Mask., in the form and 
character of the scale; but the structure of the pygidium 
is clearly distinct. 
Chionaspis nerti, Newst., 2 and % scales. 
Although not exclusively confined to Nerium oleander, 
it is evidently partial to that plant. The Rev. A. E. 
Eaton says that ‘‘the mostly solitary 2 and its f are 
common on the oleander, on leaves of well-grown stems, 
and the 2 makes a light-yellow rounded patch or spot of 
discoloration in the leaf.” 
Hab. Constantine, near the Route dela Corniche. Also 
on the same plant at Béne, 26, xii.,’95. And at Con- 
stantine three 2 on Olea europxa. 
Chionaspis striata, sp.n. (Pl. IV., fig. 8.) 
Scale of the 9 very convex, generally widely pyriform, trans- 
versely striate, the striz well separated, equidistant, and clearly 
defined ; shining satiny-white; pellicles pale ochreous yellow or 
